Piston ring



refs; 24. 1925. 1,527,307

F. J. KAMALICK PISTON RING Filed March 12. 1923 Patented Feb. 24, 1925.

UNITED STATES FRANCIS J'. KAIVLALIGK, OF CHICAGO, ILLINOIS.

PISTON RING.

Application filed March 12, 1923. Serial No. 624,427.

To all whom 2'23 may concern:

Be it known that I, FRANCIS J. KAMA- LICK, a citizen of the United States, and a resident of the city of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Piston Rings, of which the following is a specification.

This invention relates to piston rings and has for its object the provision of a single piece split ring of this character having means for preventing lateral movement between the ends of the ring in all directions, but permitting expansion and contraction of said ring.

Other objects will apear hereinafter.

The invention consists in the combinations and arrangements of parts hereinafter described and claimed.

The invention will be best understood by reference to the accompanying drawings forming a part of this specification, and in which,

Fig. 1, is a fragmentary sectional view of a cylinder with a piston disposed therein, showing the invention applied thereto, parts of said piston being broken away for the sake of clearness;

Fig. 2, is a top plan view of the piston ring, and

Fig. 3. is an enlarged fragmentary perspective View of the ends of the piston ring.

Referring to the drawings, 4; represents a fragment of a cylinder of an internal combustion motor, such cylinder being provided with a piston 5 of an ordinary type having the usual grooves 6, each of which is adapted to receive a piston ring 7 of the character provided by my invention.

The piston ring 7, as contemplated by my invention, is preferably a one piece split ring of any suitable material, the end 8 of which is recessed at 9, providing an integral extension 10 at one edge of the ring and at the outer side thereof, such extension being longitudinally bevelled in a direction extending axially or laterally of said ring as shown at 11. Another and similar extension 12 is formed by recessing the ring as indicated in dotted lines at 13, the extension 12 being located at the inner side of the opposite edge of such ring, in a diagonal direction from the extension 10. The opposite end 14 of the ring 7 is recessed at 15, such recess being of a form to snugly receive the bevelled extension 10, the recessing operation providing the extension 16 which is adapted to snugly fit within the recess 9; and such end is further recessed at 17 to snugly receive the extension 12, the recessing operation providing another similar extension 18, adapted to snugly fit within the recess 13.

By this arrangement a piston ring is provided having means for preventing movement. of the ring both laterally and in the plane of the ring, at the same time permitting free expansion and contraction of the ring, and providing an effective seal against the passage of oil therepast.

lVhile I have illustrated and described the preferred form of construction for carrying my invention into efiect, this is capable of variation and modification without departing from the spirit of the invention. I, therefore, do not wish to be limited to the precise details of construction set forth, but desire to avail myself of such variations and modifications as come within the scope of the appended claims.

Having described my invention what I claim as new and desire to secure by Letters Patent is:

1. A piston ring having one end pro vided with diagonally disposed extensions and recesses, the opposite end of said ring being provided with similar registering diagonally disposed extensions and recesses, said extensions and recesses being longitudinally bevelled axially of said ring.

2. A piston ring having one end provided with diagonally disposed extensions and recesses, the opposite end of said ring being provided with similar registering diagonally disposed extensions and recesses, all of equal length, said extensions being longitudinally bevelled axially or laterally of said ring to provide free expansion and contraction of the ring and at the same time provide an effective seal against the passage of oil therepast.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

FRANCIS J. KAMALIG-K. lVitnesses FREDA C. APPLETON, CLARENCE E. THREEDY. 

